I don't know what exactly you want to achieve.
I have a quite complex UI with many tabs. To spread the same info across different UI positions, i want to duplicate e.g. a lineEdit.
Attached is an example where i have a LineEdit it Tab 2. The LineEdit that it is Tab 1 should be an exact copy of the one in Tab 2 - same size, enable state, value, hint...
it is hereby important that the users doesn't need to change the tab. So the LineEdit in Tab 1 if changed for some reason, he sees it immediately in Tab 2.
At the moment I do it like in the attached example but I thought there is a more simpler solution.